GB1452241A - Hydraulic skid control brake system - Google Patents

Hydraulic skid control brake system

Info

Publication number
GB1452241A
GB1452241A GB3548774A GB3548774A GB1452241A GB 1452241 A GB1452241 A GB 1452241A GB 3548774 A GB3548774 A GB 3548774A GB 3548774 A GB3548774 A GB 3548774A GB 1452241 A GB1452241 A GB 1452241A
Authority
GB
United Kingdom
Prior art keywords
pressure
pump
plunger
brake
master cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3548774A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kelsey Hayes Co
Original Assignee
Kelsey Hayes Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kelsey Hayes Co filed Critical Kelsey Hayes Co
Publication of GB1452241A publication Critical patent/GB1452241A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161—Systems with master cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/42—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure, i.e. closed systems
    • B60T8/4208—Debooster systems
    • B60T8/4225—Debooster systems having a fluid actuated expansion unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/92—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action
    • B60T8/94—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action on a fluid pressure regulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)

Abstract

1452241 Antiskid braking systems KELSEY-HAYES CO 12 Aug 1974 [24 Aug 1973] 35487/74 Heading F2F In an antiskid braking system comprising a hydraulic circuit for operating a wheel brake and means for modifying the actuation of the brake in response to a predetermined signal to prevent a skid condition the said means includes a pump such as a power steering pump 49 for delivering fluid under pressure, a member movable by fluid from the pump and a regulator for maintaining at least a predetermined pressure in the pump output in response to pressure in the brake circuit. The regulator includes a composite plunger having plungers 71, 78, a first area being exposed to the pump pressure and a second area being exposed to the pressure in the hydraulic brake circuit, a spring 76 providing a preselected bias. As the pressure from the master cylinder to the rear brakes is increased the plunger 78 biases plunger 71 to a direction which increases the pressure in a conduit 53. Actuation of the skid control modulator 19 causes a check and bleed valve 29 to close and isolate the wheel cylinders from the master cylinder supply and an expansion chamber plunger 37 retreats to relieve braking pressure. In the event of pump failure or heating of any of conduits 53, 59 or 56 a fail-safe device 84 delivers brake fluid direct from the master cylinder to wheel cylinders, the device 84 including an isolation valve 85 carried by a plunger 86 which has a bypass valve end portion 87 controlling flow through a port 88. A visual or audible warning is energised via a switch 111. Stopping and starting of the engine causes variation of pump pressure and causes movement of plunger 77 and other parts thus ensuring that they do not stick or bind in their normal positions.
GB3548774A 1973-08-24 1974-08-12 Hydraulic skid control brake system Expired GB1452241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US391491A US3922021A (en) 1973-08-24 1973-08-24 Hydraulic skid control system embodying regulator

Publications (1)

Publication Number Publication Date
GB1452241A true GB1452241A (en) 1976-10-13

Family

ID=23546829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3548774A Expired GB1452241A (en) 1973-08-24 1974-08-12 Hydraulic skid control brake system

Country Status (5)

Country Link
US (1) US3922021A (en)
JP (1) JPS5050555A (en)
DE (1) DE2440320C2 (en)
FR (1) FR2241429B1 (en)
GB (1) GB1452241A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172679A (en) * 1985-02-06 1986-09-24 Aisin Seiki Antiskid apparatus for vehicles

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072366A (en) * 1975-12-31 1978-02-07 Aisin Seiki Kabushiki Kaisha Anti-skid control apparatus
JPS5325769A (en) * 1976-08-21 1978-03-09 Nissan Motor Co Ltd Oil pressure anti-skid device
JPS5325771A (en) * 1976-08-23 1978-03-09 Nissan Motor Co Ltd Oil pressure anti-skid device
JPS54134265A (en) * 1978-04-10 1979-10-18 Nissan Motor Co Ltd Antiskid device
JPS6047137B2 (en) * 1978-06-12 1985-10-19 日産自動車株式会社 Hydraulic skid prevention device
GB2027832B (en) * 1978-08-18 1982-09-08 Lucas Industries Ltd Rotary flywheel skid sensing means for vehicle hydraulic braking systems
US4315659A (en) * 1979-03-30 1982-02-16 Honda Giken Kogyo Kabushiki Kaisha Vehicular anti-skid brake device
DE3153454C2 (en) * 1980-03-03 1990-04-12 Nippon Air Brake Co., Ltd., Kobe, Jp
US4457563A (en) * 1981-10-13 1984-07-03 Lucas Industries Public Limited Company Anti-skid hydraulic braking systems for vehicles
JPS58224839A (en) * 1982-06-23 1983-12-27 Aisin Seiki Co Ltd Antiskid device for automobile
JPS6029762U (en) * 1983-08-04 1985-02-28 アイシン精機株式会社 Automotive anti-skid device
JPS6146749A (en) * 1984-08-13 1986-03-07 Aisin Seiki Co Ltd Actuator for anti-skid apparatus for car
JPH064406B2 (en) * 1984-08-13 1994-01-19 アイシン精機株式会社 Vehicle anti-skidding device actuator
DE3431326A1 (en) * 1984-08-25 1986-03-06 Robert Bosch Gmbh, 7000 Stuttgart VEHICLE BRAKE SYSTEM WITH ANTI-BLOCKING DEVICE
US4627671A (en) * 1984-11-01 1986-12-09 Nippondenso Co., Ltd. Antiskid control device
DE3502473A1 (en) * 1985-01-25 1986-07-31 Alfred Teves Gmbh, 6000 Frankfurt Hydraulic brake system
JPS62157855A (en) * 1985-12-28 1987-07-13 Nissin Kogyo Kk Hydraulic source device for hydraulic booster
DE3624721A1 (en) * 1986-07-22 1988-01-28 Teves Gmbh Alfred BRAKE SYSTEM WITH ANTI-BLOCK PROTECTION AND SLIP CONTROL
DE3723875A1 (en) * 1987-07-18 1989-02-02 Daimler Benz Ag SAFETY DEVICE FOR A ROAD VEHICLE EQUIPPED WITH AN ANTI-BLOCKING SYSTEM
DE3909210A1 (en) * 1989-03-21 1990-09-27 Teves Gmbh Alfred ELECTROHYDRAULIC STEERING AID FOR MOTOR VEHICLES
US5540488A (en) * 1995-05-11 1996-07-30 Aisin Seiki Kabushiki Kaisha Hydraulic braking system having an auxiliary pressure source

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945352A (en) * 1957-07-03 1960-07-19 Kelsey Hayes Co Fluid pressure booster system
GB1282310A (en) * 1968-08-22 1972-07-19 Nissan Motor An anti-skid apparatus for use in a braking system for a motor vehicle
US3556615A (en) * 1968-10-28 1971-01-19 Kelsey Hayes Co Skid control system
US3549209A (en) * 1969-02-14 1970-12-22 Nordberg Manufacturing Co Hydraulic braking system
US3610701A (en) * 1969-10-31 1971-10-05 Kelsey Hayes Co Skid control system
US3623778A (en) * 1969-11-18 1971-11-30 Gen Motors Corp Pressure modulator with additional support pressure
US3677608A (en) * 1970-06-01 1972-07-18 Bendix Corp Adaptive braking system with hydraulically powered modulator
FR2117751B1 (en) * 1970-12-15 1974-03-22 Dba
US3672731A (en) * 1970-12-18 1972-06-27 Gen Motors Corp Fail safe brake antilock modulator
GB1371159A (en) * 1971-11-18 1974-10-23 Aisin Seiki Antiskid control system
JPS494073A (en) * 1972-05-05 1974-01-14
US3810680A (en) * 1972-11-29 1974-05-14 Gen Motors Corp Pressure supported modulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172679A (en) * 1985-02-06 1986-09-24 Aisin Seiki Antiskid apparatus for vehicles

Also Published As

Publication number Publication date
DE2440320A1 (en) 1975-03-06
US3922021A (en) 1975-11-25
FR2241429B1 (en) 1980-08-14
JPS5050555A (en) 1975-05-07
FR2241429A1 (en) 1975-03-21
AU7171674A (en) 1976-02-05
DE2440320C2 (en) 1982-09-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19940811